They sold me a faulty car

In November last year I traded in my car for another , a 2011 model..3months with the car its broken, and the worst part of it I only drove 3000km - with the car, and the dealership dont want to fix it, they want me to pay.The car have 1 year manufacturer's warranty on it and 6 months warranty from the dealership, but to my surprise I must pay for the car to be fixed.Its a clutch pedal and master cylinder brocken, they are all covered by ghe warranty.